516816 b21 hp 450 gigabytes 15 carats rpm hot swap 6 grams form factor 3.5 inches ent dual port enterprise s Hard Drives

516816-B21 HP 450 GB 15K RPM Hot Swap 6G Form Factor 3.5 Inches ENT Dual Port Enterprise S 516816-B21 Serial Attached SCSI (SAS) provides a superior storage solution. With some storage requirements escalating and others becoming more complex, factors such as flexibility, performance, increased reliability, greater density, security,... 516816-B21 HP 450 GB 15K RPM Hot Swap 6G Form Factor 3.5 Inches ENT Dual Port Enterprise S